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from fontParts.fontshell.font import RFont | |
from fontTools.pens.cocoaPen import CocoaPen | |
f = RFont("expand-stroke.ufo") # a ufo with one line path for a glyph (no closed contours) | |
canvasSize = 800 | |
numFrames = 200 | |
def getGlyphPath(glyph): | |
pen = CocoaPen(glyph.font) | |
glyph.draw(pen) | |
b = BezierPath() | |
b.setNSBezierPath(pen.path) | |
return b | |
def drawMyPath(b, frame, sx, sy, lines): | |
translate(150, 165) | |
a = (frame/numFrames)*360 #angle | |
with savedState(): | |
for i in reversed(range(lines)): | |
c = i%2 | |
fill(c, c, c, 1) | |
strokeWidth(i/10+1) | |
b2 = b.copy() | |
b2.rotate(a, (0, 0)) | |
b2.scale(sx, sy, (0, 0)) | |
stroked = b2.expandStroke((i + 3)*3) # this is the new expand stroke method | |
stroked.scale(1/sx, 1/sy, (0, 0)) | |
stroked.rotate(-a, (0, 0)) | |
drawPath(stroked) | |
def sineLoop(time, totalFrames): | |
return (sin(((time-totalFrames/4)/totalFrames*2)*pi)+1)/2 | |
b = getGlyphPath(f["z"]) | |
for frame in range(numFrames): | |
newPage(canvasSize, canvasSize) | |
frameDuration(1/25) | |
sx = sineLoop(frame, numFrames)*3+0.1 | |
sy = sineLoop(frame+(numFrames/2), numFrames)*6+0.1 | |
rect(0,0,canvasSize,canvasSize ) | |
drawMyPath(b, frame, sx, sy, 4) | |
saveImage('test.gif') |
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